White Spectra VX3 Manuel d'instructions télécharger pdf (Page 32)

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Spectra VX

User’s Guide

more power, so for maximum battery life try to keep the back-

light to a minimum.

Sensitivity

Once you select a basic program you may need to adjust the

sensitivity settings. Most of the VX

programs are set up with

nominal sensitivities, but the Hi-Pro program is set up a little

hotter.

Most users believe sensitivity should be run as high as pos-

sible. In some cases this is true, but if you find the detector is

noisy and falses a lot you probably need to turn it down. There

are three primary sensitivity settings: Rx Gain, All Metal, and

Disc.

Rx Gain

Rx Gain (sometimes called preamp gain) sets the gain of the

receiver’s input amplifier. In most cases, you want to set this as

high as possible and still maintain stable operation.

Three things can limit the maximum gain setting. The first

is external noise, such as electro-magnetic interference (EMI)

including 50/60Hz mains and RF. EMI typically shows up as

Tip: Press/hold the ON/OFF button for ~3 seconds to quickly

set the backlight level to 20. VX

will not turn off.

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White Spectra VX3 Manuel d'instructions Page 32